Interaction of CO molecules adsorbed on stepped platinum surfaces
- 15 December 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 32 (12), 8431-8433
- https://doi.org/10.1103/physrevb.32.8431
Abstract
Recent reflection-absorption infrared data of CO adsorbed on Pt(533) and Pt(432) surfaces are explained by a calculation of normal modes based on a dipole coupling model. The model includes electronic polarizability and field-enhancement effects, and allows for the tilted orientation of CO molecules on step sites. The low-frequency band arises from one-dimensional arrays of CO molecules on step sites; the onset of the higher-frequency band signals a transition from one-dimensional to two-dimensional arrays of CO molecules.Keywords
This publication has 7 references indexed in Scilit:
- Stepped single-crystal surfaces as models for small catalyst particlesSurface Science, 1985
- The behaviour of CO adsorbed on Ru(1,1,10) and Ru(001); the dissociation of CO at the step sites of the Ru(1,1,10) surfaceSurface Science, 1985
- An infrared study of the adsorption of CO on a stepped platinum surfaceSurface Science, 1985
- Field enhancement at crystal steps: An intensity effect in vibrational spectra of adsorbed moleculesSurface Science, 1984
- The orientation of CO at the step sites of the Pt(321) surface and its implications for catalytic oxidationThe Journal of Chemical Physics, 1984
- The adsorption of CO on Pt(111) studied by infrared reflection—Absortion spectroscopySurface Science, 1983
- Infrared reflection-absorption spectroscopy of adsorbed moleculesSurface Science Reports, 1983